The case for building India’s coal chemistry capability

Why in the News?

The Strait of Hormuz closure in 2026 tested India’s energy security. Its refineries absorbed the crude supply shock through technical flexibility built over two decades. The crisis exposed a deeper vulnerability: India’s LPG dependence is concentrated at the molecule level. Refining efficiency cannot fix that concentration. Against this backdrop, the development of an indigenous coal chemistry ecosystem, particularly coal gasification and production of Dimethyl Ether (DME), is emerging as a strategic opportunity to reduce import dependence, strengthen energy security, and advance the vision of Atmanirbhar Bharat.

How did India’s refining sector convert two decades of indigenous investment into crisis resilience during the 2026 Hormuz disruption?

1. Diversified supplier base: India’s crude supplier base nearly tripled over two decades, forcing refineries to build capability to process multiple crude specifications rather than a single feedstock.
2. Indigenous technical capability: Investments in indigenous research, metallurgy, process innovation, and workforce training gave refineries the ability to process feedstock across a broad range of specifications.
3. Speed of the pivot: Within weeks of the Hormuz closure, non-Hormuz sourcing rose from 55% to 70% of India’s crude intake.
4. LPG production surge: Under the LPG control order, domestic LPG production rose from 35 Thousand Metric Tonnes (TMT) per day to 54 TMT per day within five days. Engineers achieved this by adjusting fractionation and cracking units in real time.
5. Engineering, not accounting: The production increase was an outcome of technical capability, not a redirection of existing supply.

Did refinery flexibility solve India’s LPG vulnerability, or did it only manage the immediate crisis?

1. Different nature of the two problems: Refinery flexibility solved the problem of keeping crude flowing through a fixed set of plants. It did not solve the deeper problem of LPG import concentration.
2. Crude diversification is engineerable: A refinery can be engineered to process crude from 40 different countries.
3. LPG diversification is not engineerable: LPG cannot be sourced from 40 different geographies. The molecule is drawn overwhelmingly from a handful of Gulf and Atlantic Basin producers.
4. Refining efficiency is not the solution: Processing the same imported molecule more efficiently does not reduce the underlying dependence.
5. The real solution is substitution: The long-term fix requires producing a domestic molecule that serves the same function as LPG.

What is Dimethyl Ether (DME), and how does India propose to substitute a domestic molecule for imported LPG?

1. Definition: DME is a clean-burning gas chemically similar to LPG. It blends directly into existing cylinders and pipelines, so it requires no new distribution infrastructure.
2. Production route: DME is produced through coal gasification. Coal gasification converts coal into syngas, and syngas is then converted into DME.
3. Resource base: India possesses some of the world’s largest coal reserves, giving it abundant raw material for DME production.
4. Regulatory approval: The Bureau of Indian Standards has approved blending up to 20% DME with LPG.
5. Quantified impact: A 20% blend sourced from coal gasification could displace roughly 6.3 million tonnes of LPG imports annually, saving nearly ₹34,000 crore in foreign exchange each year.
6. Origin of the technology: Scientists at CSIR’s National Chemical Laboratory developed the indigenous technology for converting methanol into DME years before the crisis.

Is India’s coal gasification ambition backed by matching execution capacity?

1. Policy commitment: The Union Cabinet approved a ₹37,500 crore scheme to promote surface coal and lignite gasification, citing the West Asia crisis as part of its rationale.
2. Scale of ambition: The scheme targets 100 million tonnes of coal gasification annually by 2030.
3. Investment incentive: The scheme provides an incentive of up to 20% of plant and machinery costs.
4. Tenure certainty: The scheme extends coal linkage tenure to 30 years. Capital-intensive projects need this horizon before committing investment.
5. Fast-tracked approval: The Centre for High Technology under the Ministry of Petroleum and Natural Gas approved scaling up the indigenous DME pilot technology within the crisis window, without the delay typical of technology-to-deployment transitions.
6. Feedstock gap: India’s coal has a higher ash content than the cleaner coal that underpinned China’s coal-to-chemicals industry.
7. Capacity gap: Domestic gasification capacity remains far below the scheme’s stated ambition.
8. Nature of the remaining challenge: Closing this gap is a question of industrial discipline and investment. Policy intent has already been settled.

Conclusion

India’s refinery flexibility during the Hormuz crisis proved that indigenous technical capability, once built, can absorb supply shocks. This capability did not solve India’s LPG dependence. LPG is sourced from a handful of Gulf and Atlantic Basin producers and cannot be diversified the way crude oil can. Coal-based DME production is the domestic substitute for the imported molecule. Policy commitment for it is now in place through the coal gasification scheme. What remains is execution: closing the ash-content gap and scaling gasification capacity to the technical depth China has spent two decades building.

Value Addition

What is Coal Chemistry? 

1. Coal chemistry refers to the conversion of coal into high-value chemicals, fuels and industrial feedstocks through physical and chemical processes instead of burning it directly for power generation.
2. It enables coal to produce cleaner fuels, fertilizers, petrochemicals and specialty chemicals, thereby improving the economic value of domestic coal resources.

Major Products of Coal Chemistry

Process	Output
Coal Gasification	Syngas (CO + H₂)
Syngas Conversion	Methanol
Methanol Conversion	Dimethyl Ether (DME)
Fischer-Tropsch Process	Synthetic Diesel
Coal-to-Chemicals	Ammonia, Urea, Olefins, Hydrogen

What is Coal Gasification?

1. Coal gasification is the process of converting coal into synthesis gas (syngas) by reacting coal with oxygen, steam and controlled heat under high pressure.
2. Instead of burning coal directly, it transforms coal into a cleaner intermediate fuel that can be further processed into Hydrogen, Methanol, Dimethyl Ether (DME), Synthetic Natural Gas (SNG), Fertilisers, and Petrochemicals

What is Dimethyl Ether (DME)?

1. Dimethyl Ether (DME) is a clean-burning gaseous fuel produced from methanol derived through coal gasification.
2. Key Features
   1. Chemically similar to LPG
   2. Can be blended with LPG
   3. Compatible with existing LPG cylinders and pipelines
   4. Produces lower particulate emissions
   5. Reduces dependence on imported LPG
   6. Can also serve as a clean industrial and transport fuel

PYQ Relevance

[UPSC 2017] Access to affordable, reliable, sustainable and modern energy is the sine qua non to achieve Sustainable Development Goals (SDGs). Comment on the progress made in India in this regard

Linkage: The PYQ tests India’s strategy to achieve energy security through indigenous energy resources, cleaner technologies, and sustainable industrial development. The article highlights coal gasification and coal chemistry as indigenous clean-coal technologies that can reduce LPG imports, strengthen energy security, and support India’s transition towards reliable and sustainable energy systems.